I wouldn't bend the pins on the tube, the glass is way to brittle for that.
Do you have any photo of how you did trim the sockets? /Martin On Sunday, 15 December 2019 22:51:34 UTC+1, nixiebunny wrote: > > Martin, > > First, do not bend the pins on the tube. I cannot tell what exactly is > your concern. Is it the gap between pads for high voltage creepage? You can > maximize this by using an oblong pad. > > If you have any solder tail sockets, you can use those. I made a bunch of > Nixie clocks in the olden days, using the B13A solder tail sockets on PC > boards. I used a trick of trimming the solder ring longer on one side and > shorter on the other side, to convert these sockets to fit in a PC board. I > made a custom pattern with a slight angular offset to handle this. > > > On Sun, Dec 15, 2019, 11:39 AM Dekatron42 <[email protected] > <javascript:>> wrote: > >> Hi all, >> >> I am trying to discern what distance is really necessary for a B27A & >> B26A sockets when they should be made with Nixie-pins on a PCB, the B27A >> pin socket is used for GSA10G and the B26A is used for Burroughs BX-1000 >> series of tubes. >> >> The original PCB mounting socket that I've seen have at least 5 >> millimeter between the pins as they are bent outwards and longer than the >> standard straight Nixie sockets used for PCB mounting. getting the same >> spacing with Nixie pins would require that I bend the Nixie-pins and that >> would complicate things like mounting. The original B26A socket has some >> 3.17 millimeter between the outer pins (17 pins (actually 18 but one >> unfilled position) with an 18.2 millimeter diameter) and 3.87 millimeter >> between the inner pins (9 pins with an 11.1 millimeter diameter). The B27A >> socket has an extra pin in the center which is the anode with some 500V on >> it and that sits approximately 5mm from the inner ring with pins. Now I I >> haven't taken into account the solder pad size for these figures so the >> distance between solder pads makes the actual distance shorter, for the >> Anode on the B27A socket I can solder a wire so i wouldn't have to route it >> between the other pins, but for the B26A socket I would like to route the >> wires between the pins making the distance even shorter between solder pads >> and wires. >> >> The Burroughs tubes has a maximum of 300V between the pins and the GSA10G >> has some 240V between main Anode and a Cathode and some 225V on the >> Auxilliary Anode when running. >> >> Any help is highly appreciated! >> >> /Martin >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/a4d01383-2fa7-48e3-8912-685c478c4281%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/a4d01383-2fa7-48e3-8912-685c478c4281%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/50ed153a-8d27-4e8c-af5f-8312fc4d93e4%40googlegroups.com.
